using TMPro;
using UnityEngine;

[RequireComponent(typeof(CharacterController))]
public class AmyRunScript : MonoBehaviour
{
    [Header("Amy Properties")]
    public float runSpeed = 10f;
    public float runSpeedOnRadiusOffset = 100f;
    public float angle = 0f;
    public float startAngle = 0f;
    public TMP_Text speedText; 

    private CharacterController characterController;
    private Animator animator;
    private bool isRunning = false;


    [Header("Runline")]
    public RunlinePlacer runline;

    private void Awake()
    {
        characterController = GetComponent<CharacterController>();
        animator = GetComponent<Animator>();
    }
    void Start()
    {
        SetAmyRandomSpeed();
    }

    void Update()
    {
        if (!gameObject.activeSelf) return;
        if(isRunning) MoveAmyOnTrack();
        animator.SetBool("isRunning", isRunning);
    }

    private void MoveAmyOnTrack()
    {
        angle += (runSpeed / runSpeedOnRadiusOffset) * Time.deltaTime;

        float x = Mathf.Cos(angle) * runline.radiusX;
        float z = Mathf.Sin(angle) * runline.radiusZ;

        Vector3 targetPos = new Vector3(x, runline.center.y, z);

        Vector3 direction = targetPos - transform.position;
        characterController.Move(direction);

        if (direction != Vector3.zero)
        {
            transform.rotation = Quaternion.LookRotation(direction);
        }
    }

    public void StartRun()
    {
        isRunning = true;
    }

    public void StopRun()
    {
        isRunning = false;
    }

    public void SetAngle(float newAngle)
    {
        angle = newAngle;
        MoveAmyOnTrack();
        StopRun();
    }

    public void PlaceOnStartAngle()
    {
        angle = startAngle;
        transform.rotation = new Quaternion(0f, transform.rotation.y, transform.rotation.z, 0f);
        SetSpeedText();
        MoveAmyOnTrack();
        StopRun();
    }

    [ContextMenu("Set Amy random speed")]
    public void SetAmyRandomSpeed()
    {
        runSpeed = Random.Range(8, 15);
    }


    private void OnTriggerEnter(Collider collider)
    {
        if (collider.gameObject.tag == "Endline" && Lesson1Controller.Instance.activeExperiment == 2) ExperimentChooser.Instance.experiment3Button.interactable = true;
    }

    private void SetSpeedText()
    {
        if (Lesson1Controller.Instance.activeExperiment != 2)
        {
            speedText.text = "SPEED: " + runSpeed.ToString();
        }
        else
        {
            speedText.text = "";
        }
    }
}